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Netwrix Change Tracker Documentation

Netwrix Change Tracker is a system integrity monitoring product for compliance programs, host intrusion detection, and change control across enterprise IT systems. Enterprise IT organizations worldwide use it, including the military, federal agencies, banks, financial services, airlines, retailers, utilities, and not-for-profit organizations.

The product automatically collects configuration data from any IT device — including servers, desktops, database systems, firewalls, and network routers and switches — and stores a baseline for each device. Supported platforms include Windows, Linux, Unix, Oracle, and SQL Server.

Change Tracker then analyzes the collected configuration data for compliance with an organization's hardened build standard. This standard typically comes from a CIS Benchmark hardening checklist or one that a manufacturer such as Microsoft, Red Hat, Oracle, or Cisco provides. Compliance standards that Change Tracker supports include PCI DSS, DISA STIG, NERC CIP, ISO 27001, GLBA, FISMA, HIPAA/HITECH, SOX, NIST 800-53/171, and GPG 13.

TechnicalOverview

Change Tracker then monitors devices continuously using either a Change Tracker Agent installed directly onto the device, or a periodically scheduled agentless interaction with the device. Change Tracker assesses any recorded changes that deviate from the initial baseline for a match with the Planned Changes configured in the system. You can record Planned Change rules directly from a device that's exhibiting changes — for example, when pre-staging patches — or from changes that Change Tracker observes and reports. Planned Changes comprise the devices to assess, the change window, and details of the changes to match, such as a file change or registry value.

This Closed-Loop, Intelligent Change Control closely aligns with COBIT or ITIL Change Control processes, whereby a "Request for Change" process pre-approves changes, which then go through review for accuracy and quality via QA testing or a post-implementation review. Netwrix offers a ServiceNow Certified ITSM Integration Module that automatically imports Change Requests from most leading ITSM products. In this way, Change Tracker automates the entire process by reviewing observed changes against predefined Planned Change rules, or by retrospectively building new Planned Change rules based on observed changes, hence the Closed-Loop terminology.

Change Tracker reports any changes that don't match a Planned Change rule as potential breach activity. In this way, Change Tracker provides a host intrusion detection system capability.

Netwrix Change Tracker has received Security Software Certification for CIS Benchmarks.

Other Netwrix products have also received several awards, including a series of Five-Star reviews from SC Magazine and a Winners Award from Computer Defense Magazine. Netwrix is also an official OVAL Adopter, using OVAL vulnerability, inventory, and compliance content in either Security Content Automation Protocol (SCAP) or Extensible Configuration Checklist Description Format (XCCDF) format.

Solution Architecture

Netwrix delivers Change Tracker as a 100% software solution. You can install the central server component on either a Windows or Linux platform. Change Tracker supports virtual hosts, but resources — particularly disk I/O performance — are critical. See the agent installation guides for your platform:

Architecture

For a full list of supported platforms, see Support Matrix.

The secure web interface handles day-to-day administration, including reporting on a device's change history and managing planned changes. Integration options include alert propagation via syslog and email. For more advanced, two-way integration, Netwrix Change Tracker provides a REST API.

  • Change Tracker tracks Windows servers and workstations using a locally installed, active Change Tracker Agent.
  • Change Tracker can also track Solaris, Ubuntu, SUSE Linux, Red Hat, and CentOS hosts using an agent.
  • Change Tracker monitors legacy Unix systems for file integrity changes using the Express Agent.
  • Change Tracker also tracks network devices, Unix, and Linux servers using an agentless, scripted interaction that runs automatically from the Change Tracker server, or using a Proxy Agent.
  • Change Tracker Hub performs detailed configuration policy management for servers and workstations, and policy compliance reporting.